JP2002034812A - Cleaning machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To drive a pump by a battery by minimizing the power consumed by the pump, eliminate the wasteful use of cleanser by uniformly mixing city water and the cleanser in the prescribed mixing ratio even when the water pressure of supplied water changes and efficiently clean a bathtub in a bathtub cleaning machine for mixing the cleanser and the city water and jetting the mixture as cleaning liquid to the bathtub and cleaning it. SOLUTION: The cleaning machine 18 cleans the bathtub 10 by supplying the cleaning liquid obtained by mixing the cleanser with the city water to an outlet part from which the cleaning liquid is discharged to the bathtub 10. On a main pipeline 44 for circulating the city water under the water pressure of supplied water, a diluting and mixing tank 56 is arranged. The diluting and mixing tank 56 is previously charged with a preset amount of cleanser. Then, a solenoid opening and closing valve 50 is opened to supply the city water to the diluting and mixing tank 56 under the water pressure of the supplied water to mix the cleanser with the city water in the diluting and mixing tank 56. The cleaning liquid as the mixed liquid of the diluted cleanser is supplied to the outlet part to jet it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a washing machine for a bathroom,
In particular, the present invention relates to a washing machine suitable for being applied to a bathtub washing machine, and more particularly, to a washing machine having a feature in a method of diluting a detergent with tap water and sending out a washing liquid to a discharge unit.

[0002]

2. Description of the Related Art Conventionally, cleaning of a bathroom, for example, cleaning of a bath tub is performed by applying a detergent to the inner surface of the bath tub and rubbing it with a sponge or a brush to remove dirt and then wash it off with water. This work is labor intensive and requires a lot of work.Because the bathtub is used every day, it must be cleaned frequently. Was a burdensome task.

[0003] Then, detergent and tap water are automatically mixed,
Various types of cleaning machines have been proposed in which this is discharged as a cleaning liquid from a discharge section toward an object to be cleaned such as a bathtub, and the cleaning is automatically performed. By the way, in this type of washing machine, it is necessary to mix a detergent and tap water at a constant ratio, make the dilution concentration of the detergent substantially uniform, and then discharge (e.g., spray) the object.

As a technique for this, as shown in FIG. 20, a water 204 and a detergent 206 stored in a water tank 200 and a detergent tank 202 are pumped up by a pump 208 and they are mixed by a pump 208. It is conceivable to send it to the discharge unit. However, in this case, since the water 204 and the detergent 206 are mixed by the pump 208, there is a disadvantage that the mixing ratio is not constant.

On the other hand, as shown in FIG.
The water 204 in the water tank 200 and the detergent 206 in the detergent tank 202 are pumped into a mixing tank 214 by dedicated pumps 210 and 212, respectively.
It is conceivable that 16 is supplied to the discharge section by another pump 218 and discharged. However, in this case, the multiple tanks 200, 202, 214 and the pump 2
10, 212, 218 and corresponding piping are required, and the structure becomes complicated. Furthermore, the use of a large number of pumps 210, 212, 218 results in high power consumption.

When the washing machine is installed in a bathroom or the like, it is desirable that the washing machine can be installed as easily as possible. For this purpose, it is desirable that the washing machine be of a battery-driven type. By doing so, large-scale electrical wiring work is not required when installing the cleaning machine, and the cleaning machine can be easily installed and constructed. However, as described above, a large number of pumps 210,
If 212 and 218 are used, power consumption by them becomes large, and it cannot be driven by a battery, and it is necessary to perform a large-scale electric wiring work and a connection work with a commercial power supply.

As a method not using such a pump,
The suction port of the aspirator is located in the flow path of the tap water, and the detergent in the detergent tank is sucked out of the suction port of the aspirator into the flow path of the tap water by the suction effect of the flow of the tap water to mix the liquid (cleaning liquid). May be formed and sent to the discharge unit.

However, in this case, the flow rate of the tap water is different between an area or a place where the supply pressure is high and an area or a place where the supply pressure is low, or the flow rate of the tap water changes at the same place based on the fluctuation of the supply pressure. The disadvantage is that the dilution ratio of the detergent is not constant.

[0009]

The cleaning machine of the present invention has been devised to solve such a problem. According to a first aspect of the present invention, there is provided a washing machine for cleaning a cleaning target by sending a cleaning liquid formed by mixing a detergent and tap water to a discharge unit and discharging the cleaning liquid toward the cleaning target from the discharge unit. A diluting / mixing tank is provided on a main pipe through which tap water is supplied at a feed pressure, and a set amount of detergent is charged in the diluting / mixing tank in advance, and then an on-off valve provided on the main pipe. The tap water is supplied at the feed pressure into the dilution / mixing tank, and the detergent and tap water are mixed in the dilution / mixing tank. It is characterized in that it is supplied to the discharge section.

According to a second aspect of the present invention, in the first aspect, the detergent in the detergent tank is supplied to the dilution / mixing tank by a pump.

According to a third aspect of the present invention, in any one of the first and second aspects, a flow regulating valve is provided on the main conduit and upstream of the dilution / mixing tank to make the flow rate of tap water constant. It is characterized by.

According to a fourth aspect of the present invention, there is provided the method according to any one of the first to third aspects, wherein the supply of the detergent to the dilution / mixing tank and the subsequent flow of the tap water based on the opening of the on-off valve are alternately performed. That the discharge of the cleaning liquid is repeated a plurality of times, and a time interval is provided between the discharge of the previous cleaning liquid and the next discharge of the cleaning liquid, so that the cleaning liquid is discharged intermittently. Features.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects, a vacuum breaker is provided so as to communicate with the dilution / mixing tank or a water passage downstream of the dilution / mixing tank. And

[0014]

As described above, according to the present invention, the dilution / mixing tank is provided on the main line, and a set amount of detergent is first charged therein, and thereafter, the inside of the main line is discharged. Tap water is circulated at the feed water pressure to mix the detergent and tap water in the dilution / mixing tank, and the detergent is diluted before being supplied to the discharge section.・ A set amount of detergent is placed in the mixing tank, and tap water is flowed into the mixing tank at the water supply pressure to perform dilution and mixing of the detergent.Therefore, the dilution rate of the detergent can be made almost constant. As well as being able to mix the detergent and tap water satisfactorily.

Further, according to the present invention, neither a dedicated water tank nor a dedicated water pump is required as in the apparatus shown in FIG. 21, and further, a diluted mixed liquid (cleaning liquid) is discharged by tap water supply pressure. Therefore, there is no need for a dedicated pump for supplying the cleaning liquid as in the apparatus shown in FIG. 21, which simplifies the apparatus configuration and increases power consumption by each pump. Can be solved. Therefore, according to the present invention, it is possible to easily realize that the washer is driven by a battery.

Next, in a second aspect of the present invention, the detergent in the detergent tank is supplied to the dilution / mixing tank by a pump. In this case, a small pump with low power consumption can be used as the detergent pump. For example, if you try to supply a detergent into the dilution / mixing tank with a pump while tap water is flowing through the main pipeline and the dilution / mixing tank by the water supply pressure, the detergent is diluted against strong pressure. -A strong pump is required because it must be supplied into the mixing tank, and a large pump with large power consumption is required. However, in the present invention, since a predetermined amount of detergent is supplied in advance into the dilution / mixing tank, the main pipe is opened to allow tap water to flow, so a small pump with low power consumption is sufficient.

According to a third aspect of the present invention, a flow regulating valve is provided on the main pipeline and upstream of the dilution / mixing tank. With this configuration, the water supply can be maintained at a substantially constant flow rate regardless of the level of the water supply pressure. Water can be sent into and passed through the dilution and mixing tank. Therefore, the detergent dilution ratio can be made constant with higher accuracy, and the washing efficiency can be increased.

According to a fourth aspect of the present invention, the supply of detergent and the flow of tap water are alternately performed, and the discharge of the cleaning liquid is divided into a plurality of times and intermittently performed. For example, since the cleaning liquid having the equalized concentration is repeatedly discharged over a certain period of time, and a rest time is provided between the discharges of the cleaning liquid, the discharged cleaning liquid is sufficiently cleaned during the rest time. Can be removed by a chemical action, and the cleaning can be performed efficiently.

According to a fifth aspect of the present invention, a vacuum breaker is provided so as to communicate with a dilution / mixing tank or a water passage downstream of the dilution / mixing tank. The residual liquid (cleaning liquid) in the tank and the water channel on the downstream side thereof can be quickly discharged.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings. In FIG. 1, reference numeral 10 denotes a bathtub installed adjacent to a washing place 12 in a bathroom, 14 denotes a washing place faucet, and 16 denotes a bathtub faucet. Reference numeral 18 denotes a cleaning machine of the present embodiment, which is a cleaning machine
And an arm 24 extending therefrom. The arm 24 is connected to the main body 22 at the base end so as to be horizontally rotatable.

The washing machine 18 of this embodiment is used for both a bathtub washing machine and a washing place washing machine. The washing machine main body 22 is attached and fixed to the inner surface of the wall W of the bathroom at the boundary between the bathtub 10 and the washing place 12. cage, and a use position S ₁ when the arm 24 to clean the bath 10, is connected to a horizontal rotatable washer body 22 between a use position S ₂ and the storage position T when cleaning the washing area 12 ing.

[0022] Here, use position _{S 1} is located is positioned above the tub 10 to the nozzle 30, 32 of the discharge portion to be described later (see FIG. 2), also use position _{S 2} is nozzle 30,
The position 32 is located above the washing place 12, and the storage position T is a position where it is located below the washing machine main body 22. In this example, the arm 24 is disposed below the main body 22 of the washing machine. However, in some cases, the arm 24 can be provided above the main body 22 of the washing machine as shown in FIG. .

As shown in FIG. 2, a nozzle head 26 is provided at the tip of the arm 24, and a nozzle unit 28 is rotatably attached to the nozzle head 26. As shown in FIG. 3, the nozzle unit 28 has a rotation axis P inclined at a predetermined angle with respect to the vertical direction, and the first nozzle 30 at a position opposite to the rotation axis P with respect to the rotation axis P. And a second nozzle 32. Here, the first nozzle 30 jets the cleaning liquid farther, and the second nozzle 32 jets the cleaning liquid relatively close to the first nozzle 30.

Specifically, the arm 24 is provided with a handle 34 at the nozzle head 26 at the distal end thereof, and the arm 24 can be rotated with the handle 34. Although the handle 34 is provided on the nozzle head 26 here, a handle 38 may be provided on the lower surface of the arm 24 as shown in FIG. 13 or, alternatively, such a protruding handle 38 may be used. Alternatively, a groove 40 may be provided on the lower surface of the arm 24 or the like, and a side wall portion of the groove 40 may be configured as the handle 42.

As shown in FIG. 2, an operation switch 36 is provided on the front surface of the main casing 20. In the case of the washing machine 18 of this example, a series of washing operations described later are performed by turning on the operation switch 36.

FIGS. 3, 4, and 5 specifically show the internal structure of the cleaning machine main body 22. FIG. In FIG. 3, reference numeral 44 denotes a main pipe line for supplying tap water to the left in the figure based on the water supply pressure, and the right end thereof is connected to a water supply pipe 48 on the back side of the wall panel 46 as shown in FIG. It is connected.

An electromagnetic on-off valve 50 is provided on the main conduit 44 near the right end in FIG. 3, and a flow regulating valve 52 and a vacuum breaker 54 are further provided downstream thereof. A check valve may be provided instead of the vacuum breaker 54. On the downstream side of the vacuum breaker 54, a detergent dilution / mixing tank 56 is provided.

The dilution / mixing tank 56 is for diluting and mixing the detergent supplied in advance with the tap water flowing into the tank. The mixed cleaning liquid (detergent liquid) passes through a pipe 58 such as a hose, further passes through a water path 60 inside a rotary joint 59 that rotatably connects the arm 24 to the main body 22 of the cleaning machine, and further continues to the water path 60. Arm 2
The water is sent to the nozzle unit 28 at the distal end of the arm 24 through a water channel 62 formed inside the entire length of the arm 4, and is jetted from the pair of the first nozzle 30 and the second nozzle 32 to the outside.

Reference numeral 63 denotes a vacuum breaker provided so as to communicate with the dilution / mixing tank 56. By providing the vacuum breaker 63 in this manner, after the cleaning liquid is discharged from the nozzles 30 and 32, the dilution and dilution are performed.
The residual liquid (cleaning liquid) in the mixing tank 56 and the water passages 60 and 62 downstream thereof can be quickly discharged.

As described above, the flow regulating valve 52 is provided on the main line 44 and upstream of the dilution / mixing tank 56.
The flow control valve 52 controls the flow rate of tap water downstream of the flow control valve 52 to a substantially constant flow rate. still,
A strainer 64 is provided upstream of the electromagnetic on-off valve 50.

3 and 5, reference numeral 66 denotes a detergent tank, and 68 denotes a detergent injection port protruding outside the main body casing 20, and the detergent is injected into the detergent tank 66 through the detergent injection port 68. Here, the detergent inlet 68 is
Normally, the cap 70 is closed.

A detergent pump 72 for supplying the detergent in the detergent tank 66 to the dilution / mixing tank 56 is provided inside the main casing 20. In this example, a small gear pump is used as the detergent pump 72, and the detergent pump 72 is rotationally driven by a DC motor 74, which is a driving unit thereof, so that the detergent inside the detergent tank 66 is transferred to the suction tube 76. Then, a predetermined amount is supplied to the dilution / mixing tank 56.

In this embodiment, the detergent pump 72 and the electromagnetic on-off valve 50 are driven by using a battery (dry battery) as a power source.
4 (see FIG. 5) is provided. These detergent pump 72 and solenoid on-off valve 50
The operation is controlled by a control unit 80 incorporated in the main body casing 20.

As shown in FIG. 5, the detergent pump 72
A check valve 82 may be provided between the tank and the dilution / mixing tank 56. In FIG. 4B, reference numeral 86 denotes a side cover of the main body casing 20.

As shown in FIG.
At its base end, is rotatably connected to the cleaning machine main body 22, more specifically the main body casing 20, by a rotary joint 59. And Thus in this example across a washing machine main body 22 side with their arm 24 side, positioning mechanism for positioning the rotational angular position of the arm 24 to the above storage position T and use position S ₁ and S ₂ are provided is there. They positioning mechanism in this embodiment includes a projection 88 provided on the arm 24 side, it is provided on the washer body 22 side grooves _{90-T, 90-S 1} , 90-S 2
It is composed of

In the case of this example, the arm 24 is rotated to project
88 and the groove 90-T are elastically engaged with each other, so that the arm 2
4 is positioned at the storage position T, and the projection 88 and the groove 90
-S ₁Is elastically engaged with the arm 24 so that the arm 24 can be used.
Place S₁Is positioned. Furthermore, the protrusion 88 and the groove 90
-S₂Is elastically engaged with the arm 24 so that the arm 24 can be used.
Place S₂Is positioned. In other words, these positioning mechanisms
Arm 24 positions nozzles 30, 32 above bathtub 10.
Bathtub cleaning position (S₁) And nozzles 30 and 32
Washing place washing position (S₂)
And are respectively positioned.

In this example, the projection 88 and the grooves 90-T, 9
0-S ₁ and 90-S ₂ are elastically engaged with each other. Therefore, when the arm 24 is rotated, the projection 88 and the grooves 90-T and 90-S ₁ are rotated at a predetermined rotation angle position. ,
90-S ₂ engages with a click feeling, and the arm 24
That the arm 24 has reached the predetermined rotation angle position is transmitted to the hand that rotates the arm 24.

FIGS. 7 and 8 show the internal structures of the nozzle head 26 and the nozzle unit 28 in detail. As shown in FIGS. 7 and 8, in this example, the water wheel 92 is rotationally driven by the flow of the cleaning liquid that has flowed through the water channel 62 in the arm 24 and has been sent to the distal end of the arm 24, and Using the rotation driving force of the water wheel 92 as power, the nozzle unit 28 rotates around the rotation axis P inclined at a predetermined angle, and while performing the rotation, the cleaning liquid after rotating the water wheel 92 is used as a pair of first and second cleaning liquids. Injection is performed from the nozzle holes 94 and 96 of the first nozzle 30 and the second nozzle 32 to the outside.

In these figures, reference numeral 98 denotes a water turbine chamber in which the water turbine 92 is rotatably housed around a rotation shaft 100. As shown in FIG. 8A, an inlet 102 communicating with the water channel 62 is opened in the water turbine room 98, and the cleaning liquid sent through the water channel 62 is supplied from the water inlet 102 to the water turbine room 98. It flows into the water vigorously and the water wheel 9
2 is rotated.

The cleaning liquid that has caused the water wheel 92 to rotate moves out of the outlet 104 into the communication chamber 106, and subsequently flows into the reduction gear chamber 110 through the communication hole 108 shown in FIG. A speed reducer 112 is provided in the speed reducer room 110, and the rotational motion of the water wheel 92 is transmitted to the rotary shaft 124 via the speed reducer 112 after being reduced in speed. The nozzle unit 28 rotates around the rotation axis P as the rotation shaft 124 rotates.

The speed reducer 112 includes a gear 116 provided on a water wheel shaft 114 that rotates integrally with the water wheel 92, a gear 118 meshing with the gear 116, and a gear 12 that rotates integrally with the gear 118.
0, a gear 122 that meshes with the gear 122, a gear 123 that rotates integrally with the gear 122, and a gear 126 that meshes with the gear 122. Here, the gear 126 rotates integrally with the rotation shaft 124. In this example, the rotational movement of the water wheel 92 is the gear 1
16 to gear 118 and further from gear 120 to gear 122
, And further transmitted to the rotation shaft portion 124 via the gear 123 and the gear 126.

The cleaning liquid flowing into the reduction gear chamber 110 is
The water flows through a water passage 128 inside a cylindrical portion 132 provided integrally with the rotation shaft portion 124, flows into a nozzle chamber 130 inside the nozzle unit 28, and subsequently, a pair of first nozzles 3
It is jetted to the outside from the nozzle holes 94 and 96 of the zero and second nozzles 32.

The rotation axis P of the nozzle unit 28 is
As shown in FIG. 11, the angle θ with respect to the vertical axis P _{0
0, and} at a position on the opposite side of the rotation axis P, the first nozzle 30 and the second nozzle 32
Are attached to the nozzle unit 28. Here, as shown in FIG. 7, the axis P ₁ of the nozzle hole 94 in the first nozzle 30 is further inclined at an angle θ ₁ with respect to the rotation axis P, and the nozzle P in the second nozzle 32 is further inclined. Hole 9
Axis P ₂ of 6 is inclined at an angle theta ₂ in the direction opposite to the first nozzle 30 with respect to the rotation axis P.

The nozzle holes 94 and 96 of the first nozzle 30 and the second nozzle 32 have a shape whose opening is widened toward the tip as shown in detail in FIGS. Injection is performed at predetermined angles θ _A and θ _B to the outside.

Here, the first nozzle 30 needs to blow the cleaning liquid farther than the second nozzle 32,
0, the opening area of the nozzle hole 94 is made larger than the opening area of the nozzle hole 96 of the second nozzle 32. That is, if the cleaning liquid is excessively squeezed by the nozzle hole 94, the momentum becomes insufficient and it is difficult to fly the cleaning liquid far. Therefore, the opening area of the nozzle hole 94 is made larger than that of the nozzle hole 96. However, if the opening area is too large, the momentum is conversely killed and the cleaning liquid cannot be scattered far away. Therefore, it is necessary to set the opening area to an appropriate area.

FIG. 11 is a diagram illustrating the spray area of the cleaning liquid from the nozzles 30 and 32 when the cleaning device 18 is used as a bathtub cleaning device. As shown in the figure, the washing machine 18 of this embodiment can spray the washing liquid uniformly from the two nozzles 30 and 32 onto the upper surface, the inner side surface, and the bottom surface of the bathtub 10 with a predetermined angle. , Bathtub 1
0 can be efficiently cleaned.

In the washing machine 18 of this embodiment, the operation switch 36
Is turned on to start the apparatus, and a series of operations are sequentially performed in a predetermined procedure to complete the cleaning. In particular,
When the operation switch 36 is turned on, first, the detergent pump 7 is turned on.
2 starts and supplies the detergent in the detergent tank 66 into the dilution / mixing tank 56 by a predetermined fixed amount. Thereafter, the electromagnetic on-off valve 50 is opened, and the tap water from the water supply pipe 48 is supplied into the main pipe 44 at a predetermined water supply pressure and circulates.

The supplied tap water is adjusted to a constant flow rate by the flow regulating valve 52, and then flows into the dilution / mixing tank 56.
Then, the detergent added in advance is diluted and mixed with the tap water, and the mixed cleaning liquid is sent to the nozzle unit 28 and jetted from each of the nozzles 30 and 32.

FIG. 15 schematically shows the state of dilution and mixing of the detergent and tap water in the dilution and mixing tank 56. As shown in the figure, when tap water flows into the dilution / mixing tank 56 through the main conduit 44 due to the water supply pressure in a state in which the set amount of the detergent 140 has been charged in the dilution / mixing tank 56 in advance. Then, the detergent 140 and the tap water flowing vigorously are sufficiently stirred and mixed by the flow of the flowing water, and a part thereof is taken out from the dilution / mixing tank 56, sent to the nozzle unit 28 by the water supply pressure, and externally. It is injected. In FIG. 15, reference numerals 142 and 144 represent an inlet to the dilution / mixing tank 56 and an outlet from the dilution / mixing tank 56, respectively.

As shown in FIG. 16A, the inlet 142 and the outlet 144 may be shifted in a direction perpendicular to the flow of tap water. In this way, the stirring and mixing in the dilution / mixing tank 56 can be performed more effectively.

Alternatively, as shown in FIG. 16 (B), the pipe 146 is inserted into the dilution / mixing tank 56 so that the flow direction differs between the inflow side and the outflow side by 90 °, and the outlet 144 is formed. May be located in the dilution / mixing tank 56. Also in this case, the stirring and mixing of the detergent 140 and the tap water in the dilution / mixing tank 56 can be more effectively performed.

Further, as shown in FIG. 17, a baffle plate 148 may be provided in the dilution / mixing tank 56. Even in this case, the baffle 148
Thus, the stirring and mixing of the detergent 140 and the tap water in the dilution / mixing tank 56 can be more effectively performed.

FIG. 18 shows still another example, in which a curved tube 150 is provided downward inside the dilution / mixing tank 56. Even in this case, the detergent 140 and the tap water can be sufficiently efficiently stirred and mixed in the dilution / mixing tank 56.

The detergent tank 66, the detergent pump 72, and the dilution / mixing tank 56 may have a positional relationship as shown in FIG. In this case, the detergent 140 in the detergent tank 66 can be easily pumped by the detergent pump 72, and the detergent 140 can be dropped and supplied into the dilution / mixing tank 56 while bleeding air from the pipeline.

After the cleaning liquid has been intermittently jetted a plurality of times as described above, only the tap water is finally jetted from the nozzles 30 and 32 to perform rinsing. FIG. 12 shows these series of cleaning operations more specifically.

In this embodiment, the apparatus is driven using the battery 84 as a power supply. However, if the voltage of the power supply fluctuates, the supply amount of the detergent 140 by the detergent pump 72 may become unstable. Therefore, in this example, a constant voltage circuit is incorporated in the control unit 80, and the detergent pump 72 is driven after the power supply voltage is once reduced to the set voltage. Thus, the supply voltage to the detergent pump 72 can be kept constant, so that the supply amount of the detergent 140 by the detergent pump 72 can be made constant.

[0057] The above is an example in which washing tub 10, by housing 1000. The arm 24 in the use position S _2, it is possible to automatically clean the washing place 12 in the same manner.

In the washing machine 18 of this embodiment, the dilution and
A set amount of the detergent 140 is put in the mixing tank 56, and tap water is flowed into the mixing tank 56 at a water supply pressure to dilute and mix the detergent 140. Therefore, the dilution rate of the detergent 140 is almost constant. And detergent 1
40 and tap water can be mixed well.

In addition, in this embodiment, the flow regulating valve 52 is provided on the main conduit 44 and upstream of the dilution / mixing tank 56, so that the tap water is diluted and mixed at a substantially constant flow rate regardless of the level of the water supply pressure. Since it can be sent into the inside and allowed to pass through it, the dilution rate of the detergent 140 can be made constant with higher accuracy.

In the washing machine 18 of this embodiment, neither a dedicated water tank nor a dedicated water pump is required as in the apparatus shown in FIG. 21. Further, in this embodiment, the washing liquid is supplied to the nozzle unit 28 by tap water supply pressure. Since a dedicated pump for supplying the cleaning liquid is not required, the apparatus configuration can be simplified, and the pump does not increase power consumption. The expression can be easily realized.

Further, in this embodiment, since a predetermined amount of the detergent 140 is supplied to the dilution / mixing tank 56 in advance as described above, the main pipe 44 is opened to allow the tap water to flow. There is an advantage that a small pump with low power consumption is sufficient.

The embodiment of the present invention has been described in detail above, but this is merely an example. For example, the present invention can be applied to a washing machine for washing an object other than a bathtub or a washing place in a bathroom, and a type of cleaning in which a cleaning liquid is discharged from a discharge unit in a mode other than spraying a cleaning liquid from a nozzle. The present invention can be configured in variously modified forms without departing from the gist thereof, such as being applicable to a machine.

[Brief description of the drawings]

FIG. 1 is a diagram showing a washing machine according to an embodiment of the present invention in a state where the washing machine is installed in a bathroom.

FIG. 2 is a view showing the washing machine of FIG. 1 taken out alone.

FIG. 3 is a diagram showing an internal configuration of a cleaning machine main body in the cleaning machine of the same embodiment.

FIG. 4 is a cross-sectional view and a side view of a cleaning machine main body in the cleaning machine of the same embodiment.

FIG. 5 is a block diagram of various mechanisms in the main body of the cleaning machine in the cleaning machine of the same embodiment.

FIG. 6 is an enlarged view of a rotating portion of an arm in the cleaning machine of the same embodiment.

FIG. 7 is a diagram showing in detail an internal structure of a nozzle head and a nozzle unit in the washing machine of the same embodiment.

FIG. 8 is a diagram showing a water wheel and a speed reducer in the nozzle head of FIG. 7;

FIG. 9 is a view showing the nozzle unit of FIG. 7;

FIG. 10 is a view showing a shape of a nozzle in the cleaning machine of the same embodiment.

FIG. 11 is a diagram illustrating a spray area of a cleaning liquid when a bathtub is cleaned using the cleaning machine of the same embodiment.

FIG. 12 is a diagram showing the operation content of the cleaning machine of the same embodiment.

FIG. 13 is a view showing another example of the handle provided on the arm.

FIG. 14 is a diagram showing an example in which an arm is provided on the upper side of the main body of the cleaning machine.

FIG. 15 is a diagram schematically illustrating a state of dilution and mixing of a detergent and tap water in a dilution and mixing tank in the washing machine of the same embodiment.

FIG. 16 is a view showing another embodiment of the dilution / mixing tank.

FIG. 17 is a view showing still another embodiment of the dilution / mixing tank.

FIG. 18 is a view showing still another embodiment of the dilution / mixing tank.

FIG. 19 is a diagram illustrating an example in which the positional relationship among a detergent tank, a detergent pump, and a dilution / mixing tank is changed.

FIG. 20 is a comparative example diagram showing an example of a dilution / mixing method of tap water and a detergent.

FIG. 21 is a comparative example diagram showing an example different from FIG. 20 of the dilution / mixing method of detergent and tap water.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Bathtub 12 Washing place 18 Washing machine 30 1st nozzle (discharge part) 32 2nd nozzle (discharge part) 44 Main pipeline 50 Electromagnetic on-off valve 52 Flow control valve 56 Dilution / mixing tank 60, 62 Water channel 63 Vacuum breaker 66 Detergent tank 72 Detergent pump 140 Detergent

Claims (5)

[Claims] 1. A washing machine that sends a cleaning liquid, which is a mixture of a detergent and tap water, to a discharge section, discharges the cleaning liquid from the discharge section toward an object to be cleaned, and cleans the object to be cleaned. A dilution / mixing tank is arranged on the main line to be circulated by water pressure, and a set amount of detergent is put in the dilution / mixing tank in advance, and then an opening / closing valve provided on the main line is opened,
Tap water is supplied into the dilution / mixing tank at a feed water pressure to mix a detergent and tap water in the dilution / mixing tank, and the detergent is diluted, and a washing liquid as a mixed liquid is supplied to the discharge section. A washing machine characterized by being supplied. 2. The washing machine according to claim 1, wherein the detergent in the detergent tank is supplied to the dilution / mixing tank by a pump. 3. The cleaning method according to claim 1, wherein a flow control valve is provided on the main conduit and upstream of the dilution / mixing tank to make the flow rate of tap water constant. Machine. 4. The method according to claim 1, wherein the supply of the detergent to the dilution / mixing tank and the subsequent flow of tap water based on the opening of the on-off valve are alternately performed to discharge the cleaning liquid. A washing machine characterized in that the washing is performed in a plurality of times, and a time interval is provided between the previous ejection of the washing liquid and the next ejection of the washing liquid, so that the ejection of the washing liquid is performed intermittently. . 5. A cleaning machine according to claim 1, wherein a vacuum breaker is provided so as to communicate with the dilution / mixing tank or with a water channel downstream of the dilution / mixing tank.